Research Article
AdaFlow: Adaptive Control to Improve Availability of OpenFlow Forwarding for Burst Quantity of Flows
@INPROCEEDINGS{10.1007/978-3-319-13326-3_39, author={Boyang Zhou and Wen Gao and Chunming Wu and Bin Wang and Ming Jiang and Yansong Wang}, title={AdaFlow: Adaptive Control to Improve Availability of OpenFlow Forwarding for Burst Quantity of Flows}, proceedings={Testbeds and Research Infrastructure: Development of Networks and Communities. 9th International ICST Conference, TridentCom 2014, Guangzhou, China, May 5-7, 2014, Revised Selected Papers}, proceedings_a={TRIDENTCOM}, year={2014}, month={11}, keywords={Software-Defined Networks Network management}, doi={10.1007/978-3-319-13326-3_39} }- Boyang Zhou
Wen Gao
Chunming Wu
Bin Wang
Ming Jiang
Yansong Wang
Year: 2014
AdaFlow: Adaptive Control to Improve Availability of OpenFlow Forwarding for Burst Quantity of Flows
TRIDENTCOM
Springer
DOI: 10.1007/978-3-319-13326-3_39
Abstract
The Software-Defined Networking (SDN) separates the control plane from the data plane to increase the flexibility. In the data plane, the unavailability of data forwarding is a common problem preventing a switch from configuring a new arrival flow into its flow table. When the burst flows arrived at the switch, the flow table can be consumed, causing the unavailability occurred. However, the problem is more complicated than in Internet due to the limited channel bandwidth for detecting the table usage. Hence, we propose a transparent core layer in the controller. The mechanism of the layer improves the availability in such way, configuring switches adapting to arrival patterns of flows to prevent the resource of switch exceeding its limit. This paper introduces the design and mechanisms of the layer as well as their algorithms. We further use a real flow trace from a Internet core router to evaluate the performance of layer. By emulating on on miniNet-HiFi, the results demonstrate that the layer can smooth the burst flows without making the flow table exceeding its size, without the layer, the switch lost 8% ingress flows. Meanwhile, the control throughput is lowered by 25.8% than before.
